I consistently order 2 of each of these large size crocks for each of my 5 macaws for both their daily fresh food as well as their daily nuts and seeds. I like being able to attach them in convenient places rather than where the ceramic bowls (that come with their cages) are located. They eventually wear out, but not for a year or two. Some of my birds have figured out how to unscrew them so we simply cut a hole in a piece of plastic to keep those big clever beaks away from the plastic screw nut. These are the only bowls I ever buy.
Reviewed by: (Verified Buyer) Sandi Hoover from Nevada.